👤

^ inseamna la puterea
Calculati:
a) 5^23:5^21+2^6×2^4-(2^2)^5
b)5^4×3^4-15^2^2
c)(16-12)^4:4^3-3^7:3^7:(3^2-6)^6
Dau coroanaa ajutorr!!


Răspuns :

a) 5^23:5^21+2^6*2^4-(2^2)^5=5^2+2^10-2^10=5^2=25
b)5^4*3^4-15^2^2=5^4*3^4-5^4*3^4=0
c)(16-12)^4:4^3-3^7:3^7:(3^2-6)^6=4^4:4^3-3^7:3^7:3^6=4^1-3^-6=4-1/3^6=4/729

/ înseamnă supra.